ui/chromeos/accelerometer/accelerometer_util.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_CHROMEOS_ACCELEROMETER_ACCELEROMETER_UTIL_H_
   6 #define UI_CHROMEOS_ACCELEROMETER_ACCELEROMETER_UTIL_H_
   7
   8 #include "chromeos/accelerometer/accelerometer_types.h"
   9 #include "ui/chromeos/ui_chromeos_export.h"
  10 #include "ui/gfx/geometry/vector3d_f.h"
  11
  12 namespace ui {
  13
  14 // Converts the acceleration data in |reading| into a gfx::Vector3dF.
  15 UI_CHROMEOS_EXPORT const gfx::Vector3dF ConvertAccelerometerReadingToVector3dF(
  16     const chromeos::AccelerometerReading& reading);
  17
  18 // A reading is considered stable if its deviation from gravity is small. This
  19 // returns false if the deviation is too high, or if |source| is not present
  20 // in the update.
  21 UI_CHROMEOS_EXPORT bool IsAccelerometerReadingStable(
  22     const chromeos::AccelerometerUpdate& update,
  23     chromeos::AccelerometerSource source);
  24
  25 }  // namespace ui
  26
  27 #endif  // UI_CHROMEOS_ACCELEROMETER_ACCELEROMETER_UTIL_H_